Refer to the exhibit and the partial configuration on routers R1 and R2. Hot Standby Routing Protocol (HSRP) is configured on the network to provide network redundancy for the IP traffic. The network administrator noticed that R2 does not became active when the R1 serial0 interface goes down. What should be changed in the configuration to fix the problem?
A.
The Serial0 interface on router R2 should be configured with a decrement value of 20.
B.
The Serial0 interface on router R1 should be configured with a decrement value of 20.
C.
R2 should be configured with a standby priority of 100.
D.
R2 should be configured with a HSRP virtual address.
Explanation:
You can configure a router to preempt or immediately take over the active role if its priority is the highest at any time. Use the following interface configuration command to allow preemption:
Switch(config-if)# standby group preempt [delay seconds] By default, the router can preempt another immediately, without delay. You can use the delay keyword to force it to wait for seconds before becoming active. This is usually done if there are routing protocols that need time to converge.
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